US Bridges

Nfa A284 over Robertson Fork Creek

Fair

Marshall County, Tennessee · .2 MI SE JCT SR129&I65 · Structure no. 590A2840001

Built
1950
75 years old, rebuilt 1965
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
22 ft
1 main span
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A284 over Robertson Fork Creek is a concrete tee beam carrying Nfa A284 over Robertson Fork Creek in Marshall County, Tennessee. It was built in 1950 and reconstructed in 1965, so it is 75 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 70 vehicles a day, roughly 3% of them trucks, projected to reach 112 by 2041. The structure is 22 ft (6.7 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A284
CrossesRobertson Fork Creek
Location.2 MI SE JCT SR129&I65
RouteCounty Highway 284
CountyMarshall County
StateTennessee
Coordinates35.37061, -86.88207
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A284 over Robertson Fork Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1965.

What condition is Nfa A284 over Robertson Fork Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Nfa A284 over Robertson Fork Creek carry?

About 70 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Nfa A284 over Robertson Fork Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 22 ft wide.

Who owns Nfa A284 over Robertson Fork Creek?

It is owned by the County Highway Agency.